move_convert05.pass.cpp revision bc8d3f97eb5c958007f2713238472e0c1c8fe02c
1//===----------------------------------------------------------------------===// 2// 3// ��������������������The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <memory> 11 12// unique_ptr 13 14// Test unique_ptr converting move ctor 15 16#include <memory> 17#include <cassert> 18 19#include "../../deleter.h" 20 21// test converting move ctor. Should only require a MoveConstructible deleter, or if 22// deleter is a reference, not even that. 23// Implicit version 24 25struct A 26{ 27 static int count; 28 A() {++count;} 29 A(const A&) {++count;} 30 virtual ~A() {--count;} 31}; 32 33int A::count = 0; 34 35struct B 36 : public A 37{ 38 static int count; 39 B() {++count;} 40 B(const B&) {++count;} 41 virtual ~B() {--count;} 42}; 43 44int B::count = 0; 45 46int main() 47{ 48 { 49 std::unique_ptr<B, Deleter<B> > s(new B, Deleter<B>(5)); 50 A* p = s.get(); 51 std::unique_ptr<A, Deleter<A> > s2 = std::move(s); 52 assert(s2.get() == p); 53 assert(s.get() == 0); 54 assert(A::count == 1); 55 assert(B::count == 1); 56 assert(s2.get_deleter().state() == 5); 57 assert(s.get_deleter().state() == 0); 58 } 59 assert(A::count == 0); 60 assert(B::count == 0); 61} 62